1. A New Protocol to Evaluate Waterproof Effect of Lip Gloss
- Author
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Irene Dini, Antonia Sacchi, Ritamaria Di Lorenzo, Sonia Laneri, Laneri, Sonia, DI LORENZO, Ritamaria, Sacchi, Antonia, and Dini, Irene
- Subjects
Computer science ,business.industry ,media_common.quotation_subject ,Lip Glo ,Waterproof Effect ,General Medicine ,Cosmetics ,Gloss (optics) ,Colorimeter ,Percentage Waterproof Ratio (%WPR) ,Computer vision ,Artificial intelligence ,business ,media_common - Abstract
A new method to evaluate lip gloss and lipstick waterproof level according to the COLIPA Guidelines for Evaluating Sunscreen Product Water Resistance in 2006 is proposed, moreover the changes in color (L* value) by Skin Colorimeter® CL 400 Courage & Kazama was measured. Tests were carried out on 20 volunteers validating the efficiency of the used method by comparing non-waterproof lip gloss/lipstick and waterproof product results. The results indicated that the lip gloss/lipstick were waterproofs when their mean % WPR was lower than 50% and they were removed after two successive immersions in water for 20 minutes at 29°±2°C. Methods used to evaluate lip gloss and lipstick waterproof level has proved effective for assessing the desired goals.
- Published
- 2019